直接写得数 × = 24÷ = × = - = ÷3= 3 -2.7= ÷5= 14× =

$\text{[math]}$ $\text{[math]}$ $\text{[math]}$ $\text{[math]}$ $\text{[math]}$ $\text{[math]}$

填空题容易

0.5+ $\text{[math]}$ =

6- $\text{[math]}$ =

$\text{[math]}$ ÷6=

1÷ $\text{[math]}$ =

$\text{[math]}$ =

口算与估算容易

$\text{[math]}$	$\text{[math]}$
$\text{[math]}$	$\text{[math]}$

口算与估算容易

①1÷ $\text{[math]}$ =	② $\text{[math]}$	③ $\text{[math]}$	④ $\text{[math]}$
⑤ $\text{[math]}$	⑥ $\text{[math]}$ ÷0.75=	⑦ $\text{[math]}$	⑧ $\text{[math]}$

口算与估算普通

①1- $\text{[math]}$ =	②0.4+ $\text{[math]}$ =	③ $\text{[math]}$	④ $\text{[math]}$
⑤ $\text{[math]}$	⑥ $\text{[math]}$	⑦ $\text{[math]}$	⑧15÷ $\text{[math]}$ =